diff options
| author | Barry Song <song.bao.hua@hisilicon.com> | 2020-09-22 13:56:15 +1200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-23 17:33:52 -0700 |
| commit | 36493269120e1fdc021001431b0cebad7d59958e (patch) | |
| tree | cfe222858d04457feffd2a50ad2096bd97e0ed7a | |
| parent | e4b9146849f246e77da4787657a3a95c1b6d2833 (diff) | |
| download | bpf-next-36493269120e1fdc021001431b0cebad7d59958e.tar.gz | |
net: allwinner: remove redundant irqsave and irqrestore in hardIRQ
The comment "holders of db->lock must always block IRQs" and related
code to do irqsave and irqrestore don't make sense since we are in a
IRQ-disabled hardIRQ context.
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/allwinner/sun4i-emac.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c index b3b8a801014230..862ea44beea772 100644 --- a/drivers/net/ethernet/allwinner/sun4i-emac.c +++ b/drivers/net/ethernet/allwinner/sun4i-emac.c @@ -640,13 +640,11 @@ static irqreturn_t emac_interrupt(int irq, void *dev_id) struct net_device *dev = dev_id; struct emac_board_info *db = netdev_priv(dev); int int_status; - unsigned long flags; unsigned int reg_val; /* A real interrupt coming */ - /* holders of db->lock must always block IRQs */ - spin_lock_irqsave(&db->lock, flags); + spin_lock(&db->lock); /* Disable all interrupts */ writel(0, db->membase + EMAC_INT_CTL_REG); @@ -680,7 +678,7 @@ static irqreturn_t emac_interrupt(int irq, void *dev_id) reg_val |= (0xf << 0) | (0x01 << 8); writel(reg_val, db->membase + EMAC_INT_CTL_REG); } - spin_unlock_irqrestore(&db->lock, flags); + spin_unlock(&db->lock); return IRQ_HANDLED; } |